Exegesis:

tines tōn Pharisaiōn apo tou ochlou ‘some of the Pharisees in the crowd.’ apo tou ochlou has the function of a partitive genitive with tines tōn Pharisaiōn taken as a whole, cf. on 9.38.

epitimēson tois mathētais sou ‘check, or, stop your disciples,’ cf. on 4.35.

Translation:

Rebuke your disciples, or, ‘tell your disciples that they must not do so (or, must be silent)’; cf. on 4.35.

Quoted with permission from Reiling, J. and Swellengrebel, J.L. A Handbook on the Gospel of Luke. (UBS Handbook Series). New York: UBS, 1971. For this and other handbooks for translators see here . Make sure to also consult the Handbook on the Gospel of Mark for parallel or similar verses.